Fears over the declining block reward are real. — I hypothesize several hundred billion, in present value USD, would be an adequate security budget — Dan Held, https://blog.picks.co/bitcoins-security-is-fine-93391d9b61a8 Dan dismisses concerns about Bitcoin’s security once we transition to fees; he’s wrong. [Note: Dan claims I misread maliciously, and that is an annual budget, hence I have fixed up below.]